Feedback is delighted to hear from a reader who proposes an ingenious new unit of data – but we have some quibbles with the maths ...

Could an enormous blue whale make a mistake and swallow a dolphin? Learn why it's not possible for blue whales to eat ...

The long-term analysis of blue whale and fin whale vocalizations in ... as an ocean current transports comparatively warm water to the Arctic there, which in turn sparks high biological productivity.